After some miles the forest thinned and retreated to the north.

The forest thinned and the two men came out into blinding sunlight.

The morning opened wide before him, and the forest thinned again.

Two days later, we noticed that the forest was thinning somewhat.

The forest thinned around them as they pushed ever nearer the Wall.

The forest thinned; the trees became fewer and more slender.

Farther below, the forest thinned, then gave way to plain.

A few minutes later the forest thinned, and they broke out of the trees into the dear.

But the forest had been thinning for some time as the land grew increasingly more rocky.

Here the forest thinned and the glades were more frequent.